Add imx93-var-som support
Add support for the Variscite VAR-SOM-IMX93 evaluation kit. The SoM
consists of an NXP iMX93 dual A55 CPU. The SoM is mounted on a Variscite
Symphony SBC.
Signed-off-by: Mathieu Othacehe <m.othacehe@gmail.com>
diff --git a/arch/arm/dts/imx93-var-som-symphony-u-boot.dtsi b/arch/arm/dts/imx93-var-som-symphony-u-boot.dtsi
new file mode 100644
index 0000000..1193fc0
--- /dev/null
+++ b/arch/arm/dts/imx93-var-som-symphony-u-boot.dtsi
@@ -0,0 +1,266 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright 2022 NXP
+ * Copyright 2023 Variscite Ltd.
+ */
+
+#include "imx93-u-boot.dtsi"
+
+/ {
+ wdt-reboot {
+ compatible = "wdt-reboot";
+ wdt = <&wdog3>;
+ bootph-pre-ram;
+ bootph-some-ram;
+ };
+
+ aliases {
+ ethernet0 = &eqos;
+ ethernet1 = &fec;
+ };
+
+ firmware {
+ optee {
+ compatible = "linaro,optee-tz";
+ method = "smc";
+ };
+ };
+};
+
+&{/soc@0} {
+ bootph-all;
+ bootph-pre-ram;
+};
+
+&aips1 {
+ bootph-pre-ram;
+ bootph-all;
+};
+
+&aips2 {
+ bootph-pre-ram;
+ bootph-some-ram;
+};
+
+&aips3 {
+ bootph-pre-ram;
+ bootph-some-ram;
+};
+
+&iomuxc {
+ bootph-pre-ram;
+ bootph-some-ram;
+};
+
+®_usdhc2_vmmc {
+ u-boot,off-on-delay-us = <20000>;
+ bootph-pre-ram;
+ bootph-some-ram;
+};
+
+&pinctrl_reg_usdhc2_vmmc {
+ bootph-pre-ram;
+};
+
+&pinctrl_uart1 {
+ bootph-pre-ram;
+ bootph-some-ram;
+};
+
+&pinctrl_usdhc2 {
+ bootph-pre-ram;
+ bootph-some-ram;
+};
+
+&gpio1 {
+ bootph-pre-ram;
+ bootph-some-ram;
+};
+
+&gpio2 {
+ bootph-pre-ram;
+ bootph-some-ram;
+};
+
+&gpio3 {
+ bootph-pre-ram;
+ bootph-some-ram;
+};
+
+&gpio4 {
+ bootph-pre-ram;
+ bootph-some-ram;
+};
+
+&lpuart1 {
+ bootph-pre-ram;
+ bootph-some-ram;
+};
+
+&usdhc1 {
+ bootph-pre-ram;
+ bootph-some-ram;
+};
+
+&usdhc2 {
+ bootph-pre-ram;
+ bootph-some-ram;
+ fsl,signal-voltage-switch-extra-delay-ms = <8>;
+};
+
+ðphy0 {
+ reset-gpios = <&gpio1 7 GPIO_ACTIVE_LOW>;
+ reset-assert-us = <15000>;
+ reset-deassert-us = <100000>;
+};
+
+ðphy1 {
+ reset-gpios = <&pca9534 5 GPIO_ACTIVE_LOW>;
+ reset-assert-us = <15000>;
+ reset-deassert-us = <100000>;
+};
+
+&s4muap {
+ bootph-pre-ram;
+ bootph-some-ram;
+ status = "okay";
+};
+
+&clk {
+ bootph-all;
+ bootph-pre-ram;
+ /delete-property/ assigned-clocks;
+ /delete-property/ assigned-clock-rates;
+};
+
+&osc_32k {
+ bootph-all;
+ bootph-pre-ram;
+};
+
+&osc_24m {
+ bootph-all;
+ bootph-pre-ram;
+};
+
+&clk_ext1 {
+ bootph-all;
+ bootph-pre-ram;
+};
+
+/*
+ * The two nodes below won't be needed once nxp,pca9451a
+ * support is added to the Linux kernel.
+ */
+&iomuxc {
+ pinctrl_lpi2c3: lpi2c3grp {
+ bootph-pre-ram;
+ fsl,pins = <
+ MX93_PAD_GPIO_IO28__LPI2C3_SDA 0x40000b9e
+ MX93_PAD_GPIO_IO29__LPI2C3_SCL 0x40000b9e
+ >;
+ };
+};
+
+&lpi2c3 {
+ bootph-pre-ram;
+ bootph-some-ram;
+ clock-frequency = <400000>;
+ pinctrl-names = "default", "sleep";
+ pinctrl-0 = <&pinctrl_lpi2c3>;
+ pinctrl-1 = <&pinctrl_lpi2c3>;
+ status = "okay";
+
+ pmic@25 {
+ bootph-pre-ram;
+ bootph-some-ram;
+ compatible = "nxp,pca9451a";
+ reg = <0x25>;
+ pinctrl-names = "default";
+
+ regulators {
+ bootph-pre-ram;
+ buck1: BUCK1 {
+ regulator-name = "BUCK1";
+ regulator-min-microvolt = <600000>;
+ regulator-max-microvolt = <2187500>;
+ regulator-boot-on;
+ regulator-always-on;
+ regulator-ramp-delay = <3125>;
+ };
+
+ buck2: BUCK2 {
+ regulator-name = "BUCK2";
+ regulator-min-microvolt = <600000>;
+ regulator-max-microvolt = <2187500>;
+ regulator-boot-on;
+ regulator-always-on;
+ regulator-ramp-delay = <3125>;
+ };
+
+ buck4: BUCK4{
+ regulator-name = "BUCK4";
+ regulator-min-microvolt = <600000>;
+ regulator-max-microvolt = <3400000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ buck5: BUCK5{
+ regulator-name = "BUCK5";
+ regulator-min-microvolt = <600000>;
+ regulator-max-microvolt = <3400000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ buck6: BUCK6 {
+ regulator-name = "BUCK6";
+ regulator-min-microvolt = <600000>;
+ regulator-max-microvolt = <3400000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ ldo1: LDO1 {
+ regulator-name = "LDO1";
+ regulator-min-microvolt = <1600000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ ldo2: LDO2 {
+ regulator-name = "LDO2";
+ regulator-min-microvolt = <800000>;
+ regulator-max-microvolt = <1150000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ ldo3: LDO3 {
+ regulator-name = "LDO3";
+ regulator-min-microvolt = <800000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ ldo4: LDO4 {
+ regulator-name = "LDO4";
+ regulator-min-microvolt = <800000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ ldo5: LDO5 {
+ regulator-name = "LDO5";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+ };
+ };
+};